188 citations · 1.1k across the 33 of their papers we have counts for
33 papers
Reversible optical isolators and quasi-circulators using a magneto-optical Fabry-Pérot cavity
Tiantian Zhang, Wenpeng Zhou, Zhixiang Li +7
Nonreciprocal optical devices are essential for laser protection, modern optical communication and quantum information processing by enforcing one-way light propagation. The conven…
A passive bias-free ultrabroadband optical isolator based on unidirectional self-induced transparency
Haodong Wu, Jiangshan Tang, Mingyuan Chen +4
Achieving a broadband nonreciprocal device without gain and any external bias is very challenging and highly desirable for modern photonic technologies and quantum networks. Here,…
Nonlinear dissipation induced photon blockade
Xin Su, Jiang-Shan Tang, Keyu Xia
We theoretically propose a scheme for photon blockade in a cavity quantum electrodynamical system consisting of an N-type atomic medium interacting with a single-mode Fabry-Perot c…
Nonreciprocal single-photon band structure
Jiangshan Tang, Wei Nie, Lei Tang +5
We study single-photon band structure in a one-dimensional (1D) coupled-resonator optical waveguide (CROW) which chirally couples to an array of two-level quantum emitters (QEs). T…
Single-photon transport in a whispering-gallery mode microresonator directionally coupled with a two-level quantum emitter
Jiangshan Tang, Lei Tang, Keyu Xia
We investigate the single-photon transport problem in the system of a Whispering-Gallery mode microresonator directionally coupled with a two-level quantum emitter (QE). This QE-mi…
Quantum Squeezing Induced Optical Nonreciprocity
Lei Tang, Jiangshan Tang, Mingyuan Chen +3
We propose an all-optical approach to achieve optical nonreciprocity on a chip by quantum squeezing one of two coupled resonator modes. By parametric pumping a nonlinear resonator…
Optical nonreciprocity in rotating diamond with nitrogen-vacancy center
Hong-Bo Huang, Jun-Jie Lin, Yi-Xuan Yao +3
We theoretically propose a method to realize optical nonreciprocity in rotating nano-diamond with a nitrogen-vacancy (NV) center. Because of the relative motion of the NV center wi…
Ultralow-power all-optical switching via a chiral Mach-Zehnder interferometer
Y. P. Ruan, H. D. Wu, S. J. Ge +8
All-optical switching increasingly plays an important role in optical information processing. However, simultaneous achievement of ultralow power consumption, broad bandwidth and h…
Towards On-Demand Heralded Single-Photon Sources via Photon Blockade
Jiangshan Tang, Lei Tang, Haodong Wu +7
Spontaneous parametric down-conversion (SPDC) in a laser pumped optical nonlinear medium can produce heralded single photons with a high purity but a very low yield. Improving the…
Vector Vortex Beam Emitter Embedded in a Photonic Chip
Yuan Chen, Ke-Yu Xia, Wei-Guan Shen +7
Vector vortex beams simultaneously carrying spin and orbital angular momentum of light promise additional degrees of freedom for modern optics and emerging resources for both class…
Thermal induced monochromatic microwave generation in magnon-polariton
Vahram L. Grigoryan, Ke Xia
We propose thermal induced generation of monochromatic microwave radiation in magnon-polariton. Mechanism of thermal to microwave energy transformation is based on intrinsic energy…
On-Chip Chiral Single-Photon Interface: Isolation and Unidirectional Emission
Lei Tang, Jiangshan Tang, Weidong Zhang +5
Chiral quantum systems have received intensive attention in fundamental physics and applications in quantum information processing including optical isolation and photon unidirecti…
Resource-efficient analyzer of Bell and Greenberger-Horne-Zeilinger states of multiphoton systems
Tao Li, Adam Miranowicz, Keyu Xia +1
We propose a resource-efficient error-rejecting entangled-state analyzer for polarization-encoded multiphoton systems. Our analyzer is based on two single-photon quantum-nondemolit…
Quantum memory and gates using a Lambda-type quantum emitter coupled to a chiral waveguide
Tao Li, Adam Miranowicz, Xuedong Hu +2
By coupling a -type quantum emitter to a chiral waveguide, in which the polarization of a photon is locked to its propagation direction, we propose a controllable photon-emitter…
Chaotic synchronization of two optical cavity modes in optomechanical systems
Nan Yang, Adam Miranowicz, Yong-Chun Liu +2
The synchronization of the motion of microresonators has attracted considerable attention. Here we present theoretical methods to synchronize the chaotic motion of two optical cavi…
Quantum magnetomechanics: towards the ultra-strong coupling regime
Erick Romero-Sanchez, Warwick P. Bowen, Michael R. Vanner +2
In this paper we investigate a hybrid quantum system comprising a mechanical oscillator coupled via magnetic induced electromotive force to an resonator. We derive the Lagrang…
Squeezing giant spin states via geometric phase control in cavity-assisted Raman transitions
Keyu Xia
Squeezing ensemble of spins provides a way to surpass the standard quantum limit (SQL) in quantum metrology and test the fundamental physics as well, and therefore attracts broad i…
Hybrid quantum gate and entanglement between a "stationary" photonic qubit and a flying optical state via a giant cross Kerr nonlinear effect
Keyu Xia, Jason Twamley
Quantum information processing with hybrid protocols making use of discrete- and continuous-variable currently attracts of great interest because of its promising applications in s…
Quantum routing of single optical photons with a superconducting flux qubit
Keyu Xia, Fedor Jelezko, Jason Twamley
Controlling and swapping quantum information in a quantum coherent way between the microwave and optical regimes is essential for building long-range superconducting quantum networ…
Generating spin squeezing states and Greenberger-Horne-Zeilinger entanglement using a hybrid phonon-spin ensemble in diamond
Keyu Xia, Jason Twamley
Quantum squeezing and entanglement of spins can be used to improve the sensitivity in quantum metrology. Here we propose a scheme to create collective coupling of an ensemble of sp…
Deterministic generation of bright multicolor entanglement from optomechanical systems
Keyu Xia
Entangled continuous variable (CV) Gaussian states with different wavelengths plays a central role in recent CV-based approaches to quantum network, quantum information processing…
Detection of a weak magnetic field via cavity enhanced Faraday rotation
Keyu Xia, Nan Zhao, Jason Twamley
We study the sensitive detection of a weak static magnetic field via Faraday rotation induced by an ensemble of spins in a bimodal degenerate microwave cavity. We determine the lim…
Cavity-free nondestructive detection of a single optical photon
Keyu Xia, Mattias Johnsson, Peter L. Knight +1
Detecting a single photon without absorbing it is a long standing challenge in quantum optics. All experiments demonstrating the nondestructive detection of a photon make use of a…
Giant enhancement of tunable optomechanical coupling via ultrarefractive medium
Keyu Xia, Jason Twamley
Exploring the fundamental quantum behaviour of optomechanical resonators is of great interest recently but requires the realization of the strong coupling regime. We study the opti…